Mr A Cheung was employed by an investment company as an accountant on the following terms: a. 2 years contract from 1 July 2019 to 30 June 2021 b. Monthly salary: $25,000 per month plus one month bonus payable on 31 December every year (no pro rata). c. Contract gratuity of $75,000 payable upon completion of the contract. He did not apply to have the gratuity spread back. During his employment with the investment company, he also received the following: Year ended 31 March 21 $ 1 April 21 to 30 June 21 $ Passage allowance (Note i) 30,000 10,000 Meal allowance 40,000 20,000 Travelling allowance (Note ii) 12,000 3,000 Notes: (i) Mr A Cheung spent $20,000 on overseas travelling during the year ended 31 March 2021, but the amount of $10,000 for the period 1 April 2021 to 30 June 2021 was not spent. (ii) The allowance was granted to subsidize Mr A Cheungs home to office travelling expenses. Mr A Cheungs brother was also working in the same company and both were entitled to subsidized accommodation provided by the company. With their mutual agreement, Mr A Cheung shared the accommodation with his brother, and the employer deducted $1,000 each from the monthly salary as rent. Mr A Cheung left the investment company after the completion of the contract and joined a trading company as accounting manager on 1 July 2021. He also moved out of the previous accommodation and purchased his own flat for residence. Mr A Cheung received the following income from the trading company for the period 1 July 2021 to 31 March 2022: (1) Salary: $450,000 (2) Housing allowance: $20,000 per month (he had spent $15,000 for the repayment of mortgage loan). Mr A Cheung was married and his wife was a housewife. He had a son aged 15. His father was aged 65 and was living with him. Required: Compute the respective assessable income of Mr A Cheung for the years of assessment 2020/21 and 2021/22.